Additional CMX649 features include a programmable voice activity detector (VAD) with adjustable threshold level and attack/decay times, a transcoder to convert between different voice coding schemes and a selectable digital scrambler for coded signal privacy and efficiency in modulation.
The CMX649 is available in compact 20-pin plastic SOIC and TSSOP packages, and an evaluation kit is available (DE6491 Wireless Voice Link Demonstration Kit).

Pricing: Less than $3 for high volume quantities.
Availability: Now.
Datasheet: Click here